Auxiliary water heater



Aug. 7, 1928; 1,679,768 A. F. GOBIN mummy wina Hanna Filed lay 1a, 1926 2 Sheets-Sheet 1 I INVENTO-R 6 /7041: F6061).

A'ITORNEY Patented Aug. 7, 1928.,

UNITED sTAT s 1P A'TENT OFFICE,

ANDRE r. GOBIN, OYF'IBROOKLYN, NEW YORK.

AUXILIARY WATER HEATER.

Application filed'May 1:8,

- The invention relates, broadly, to improvements in water heaters and more specifically to improvements in water heaters of the type wherein a plurality of 'separate'sources of '5 heat are utilized to raise the temperature of the water. 1

In the ordinary water heater employing gas as the heating medium and wherein the water is fed into the heater in a cold condition, a considerable period of time ensues after the gas is lighted before the.

temperature of the water is raised to the desired point. The present invention aims to remedy the above defect and to make it possible to obtain large volumes ofhot water in comparatively short time, which beneficial result is achieved by employing in connec tion with the heater means for maintaining the water therein in a preheated or initially warm condition. More specifically, the invention contemplates providing a heater in which a portion of the heating coils are surrounded with a jacket through which flows in conjunction with the pre-heating means and the manner of connecting it to the hot water storage boiler.

Figure 2 is a view showing the heater partly in front elevation and with the door open, and partly in section and Figure dis a sectional view of a detail of the heater. 7

In Figure 1, the improved water heater, 1, is shown in conjunction with the hot water storage boiler, 2, and the hot water furnace,

through the pipe line, 4, and hot water is drawn oil from the top through the pipe 5. The cold water in the boiler, 2, enters the heater, 1, through the pipe, 6, is there heated, and hot water is delivered back into the boiler through the pipe, 7. It will be underand pipe, 7

3. The cold water enters the storage boiler 1926. Serial No. 109,838."

of waterlthrough boiler, 2, pipe, 6, heater,1, The hot water furnace,3, is of ordinary and well-known construction but is provided with theipipes, 8" and 9, leading to the heater," 1, through which hotwater from the furnace flows and serves to preheat stood that there is a continuous circulation the waterin the heater in the manner here-- inafter' described. Leading to the heater,

1, is the gas pipe, 10, which is provided with a-valve,'11,serving to regulate the flow of gas to the burner. a

The nature ofthe heater ismoreclearly shown in Figure. 2, to which reference will now-be had; It comprises in general two compartments, housing water coils,.12, 13,

the upper coils, 12 being subjected to the influence of the burner, 14 supplied through pipe, 10.. and the lower coils, 13, be,- ing jacketed with hot water from the/furnace, 3. Thelower compartment is watertight and is separated from the upper compartment by any suitablemeans such as the plate 15. Theupper compartmentis provided with the door, 16, which is-suitably hinged and allows ingress to the interior of the compartment for the purpose of inspection and in order that the burner, 14,

may be lighted. The coils 12 and 13, are

serially connected by means of any suitable watertight joint. The preferred form of this joint is shown in Figures 2 and 3 of the drawings. A bushing, 17, extends thru the plate and'the ends of the coils 12 and 13, are

rigidly secured therein by means of brazing material 19 in the manner shown in Figure 2. The nut 18 isithreaded on the bushing and lends a neat appearance to the heater.

This form of joint I have found to be very effective. The coils, 12 and 13, in serv: ice are subjected due to their heated condition to severe strain andit is necessary that the joint connecting them be extremely secure as well as watertight. The brazed poses very well.

Thejcoils 12 are composed of convolutions which vary in diameter as shown in Figure 2. This allows themto expand relative to one another when heated and prevents undue strain thereon due to their heated condition.

At the top of the gas chamber, there is provided a flue 20, the purpose of which is to conduct the burnt gases away.- When the.

burner 14 is lighted, the flame and burnt 100 joint herein described subserves these purv gases rise axially thru the coils 12, heating the same, and the burnt gases are omitted thru the flue 20. I

In connection with the Water jacket, attention is called to the fact that the pipe, 8, leading from the furnace may be connected either from the right as seen in Fig ure 2 and as shown therein or it may be connected from the left. For this purpose a plug, 21, is provided which may be removed and the pipe, 8, screwed in the opening thereof In case it is desired to insert the pipe 8 from the left, the opening at the right will be plugged up.' By this arrangement connections to the furnace may be easily and conveniently made.

In operation, the jacket surrounding the coils, 13, fed with hot water from the furnace, 3, maintains the waterwithin the said coils in a preheated or Warm condition so that When the gas heater 1 1, is lighted the temperature of the water is very quickly raised. The series connection of coils, l2 and 13 and the jaclieting of the lower heat ing coils result in a good circulation of the Water through the closed system including heater, 1, pipes 6 and? and storage boiler, 2. The design and location of the various elements are such as to obtain a maximum in thermal efficiency and result in a heater which is both eflicient and economical.

It will he understood, of course, that either source of heat, the gas burner, 14, or the hot water jacket around coils, 13, may be used separately and independently of each other. If the furnace, 3, Were not running it would still be possible'to obtain hot Water by simply lighting burner, 14. And, conversely, hot Water might be obtained With pine circuit comprising a plurality of coils or pipe arranged in series to conduct a fluid ser1ally therethrough, said pipe circuit be-- ing divided into sections, a. casing surrounding the coils of the pipe circuit, av partition dividing said casing into"compartments,said partition having an opening through which the pipe extends and wherein abutting ends of the pipes comprising the sections are placed and meet, a watertight oint surrounding said ends in said opening, said joint serving to seal the abut-ting ends of the sec-' means for sup'plymg tions and the opening a heated fluid to one of and around the coils therein, and a burner within another'of said compartments for heating the coils therein;

In testimony whereof,l have signed'my nameto this specification this fifteenth day of May, 1926. 7

ANDRE F. GOBIN. K

said compartments i 50 I In a device of the character described, a i 

